Rendering学習日記

「実践CGへの誘い」p.61
Listing 4.1

基本プリミティブの表示をします。いろいろと工夫できますね。

#list41.py

#/* Copyrighted Pixar 1989 */

#/* From the RenderMan Companion p. 61 */

#/* Listing 4.1  Routine generating quadric surfaces shown in Figure 4.1 */

#/* 



import cgkit.cri

from cgkit.cgtypes import *



# Load the RenderMan API.

# Replace the library name with whatever renderer you want to use.

ri = cgkit.cri.loadRI("3delight")

cgkit.cri.importRINames(ri, globals())



def Go():

    ShowQuads()



OFFSET = 1.2



def ShowQuads():

    RiRotate(-90.0, 1.0, 0.0, 0.0)

    

    RiTranslate(-OFFSET, 0.0, (OFFSET/2))

    RiSphere(0.5, -0.5, 0.5, 360.0, RI_NULL)        #/* Declare a sphere */

    

    RiTranslate(OFFSET, 0.0, 0.0)

    RiTranslate(0.0, 0.0, -0.5)

    RiCone(1.0, 0.5, 360.0, RI_NULL)                #/* Declare a cone */

    

    RiTranslate(0.0, 0.0, 0.5)

    RiTranslate(OFFSET, 0.0, 0.0)

    RiCylinder(0.5, -0.5, 0.5, 360.0, RI_NULL)      #/* Declare cylinder */

    

    RiTranslate(-(OFFSET*2), 0.0, -OFFSET)

    hyperpt1 =[ 0.4, -0.4, -0.4]

    hyperpt2 =[ 0.4,  0.4, 0.4]

    

    #/* Declare hyperboloid */

    RiHyperboloid(hyperpt1, hyperpt2, 360.0, RI_NULL)

    

    RiTranslate(OFFSET, 0.0, -0.5)

    RiParaboloid(0.5, 0.0, 0.9, 360.0, RI_NULL)     #/* Declare paraboloid */

    

    RiTranslate(OFFSET, 0.0, 0.5)

    RiTorus(.4, .15, 0.0, 360.0, 360.0, RI_NULL)    #/* Declare torus */





RiBegin (RI_NULL)  #/* Start Renderer */

RiDisplay("quadsmain.tiff", RI_FILE, "rgb", RI_NULL)

RiFormat( 512, 372, -1.0)

RiProjection (RI_PERSPECTIVE,RI_FOV,45)

RiTranslate (0.0, 0.0, 3.5)

RiWorldBegin ()

RiLightSource ("distantlight", RI_NULL)

RiAttributeBegin()



RiSurface ("plastic", Kd=1.0)

RiColor((0.97,0.64,0.39))

Go()

RiAttributeEnd()

RiWorldEnd()

RiEnd()